计算机科学 ›› 2018, Vol. 45 ›› Issue (4): 126-130.doi: 10.11896/j.issn.1002-137X.2018.04.020
杨羽琦,章国安,金喜龙
YANG Yu-qi, ZHANG Guo-an and JIN Xi-long
摘要： 为了降低城市环境下对转发范围内的单个车辆节点运动的感知敏感度,减少源节点到目的节点的平均跳数和传输时延,提出一种车载自组织网络中基于车辆密度的双簇头路由协议(Dual-Cluster-Head Routing Protocol Based on Vehicle Density,DCHPBD)。该路由协议根据车辆密度设置簇的大小,在同一路段簇内左右车道分别选出一个簇头,根据最大化生存期原则选择用于转发数据分组的主簇头,另外一个作为备选簇头。仿真结果表明,与CBDRP和EG-RAODV协议相比,所提出的协议簇头生存期较长,平均跳数和平均时延较小,通信性能更好。
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